<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>文档标题</title>
  <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
  <!--优先选择chrome 内核-->
  <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
  <!--<link rel="stylesheet " type="text/css " href="css/globle.css " />-->
  <link rel="stylesheet " type="text/css " href="css/style.css " />
  <script src='js/jquery.js'></script>
</head>



<body>
	
  <button>获取浏览器版本</button>
  <button>获取系统版本</button>
  
  
  
  
  
 
  
</body>
<script>

</script>
</html>

  	
  
  
  
  
  
  
  
 
  
</body>

</html>
